mcleod



' (No Model.) 2 S heetsSheet 1 J. S. McLEOD.

RAILROAD'$IGNAL.

Patented Sept. 6, 1881.

2 Sheets-Sheet 2. J. S. Mo'LEOD.

RAILROAD SIGNAL.

(No Model.)

Patented Sept, 6, 1881.

I No. 246,624.

mel

NITED STATES PATENT OFFIC JOHN S. MGLEOD, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE MGLEOD AIR RAILROAD SIGNAL COMPANY, OF SAME PLACE. A

RAILROAD-SIGNAL.

SPECIFICATION forming part of Letters Patent No. 246,624, dated September 6, 1881.

Application filed July 14, 1880. (No model.)

1'0 all whom it may concern:

Be it known that I, JOHN S. MoLnon, of Boston, in the county of Suffolk and State of Massachusetts, have invented a new and usei 5 ful Improvementin Railroad-Signals, ot'which the following is a specification.

My invention relates to improvements in that class of railway-signals operated by the wheels of a railway train passing over the track; and the invention consists in operating signaling apparatus in general by means of pivoted arms and operatinglever or levers, as hereinafter described.

Referring to the drawings, Figure 1 represents my device as applied to a pneumatic apparatus such as is embraced in an application now in the Patent Office. Fig. 2 represents my device as applied to an automatic signaling apparatus which I have embraced in still another application. Fig. 3 represents the tread-lever shoe or chair. Fig. at is the actuating-lever shoe or chair. Fig. 5 represents the connection of the air-shifting device with the pivoted arms and operating-lever. Fig. 6 represents the fulcrum end ofthe actuating-lever m.

A represents a railway rail resting upon chairs or shoes j, attached to the ties under and outside of the rail, said chair being provided with notches a a/(see Fig. 3) to connect 0 the rail shoe and tie firmly together. Within a groove or slot, 1), Fig. 3, is pivoted the lower end of thetread lever or bar Z, thetop of which, at its pivoted end, is a little below the top of the rail, and gradually widening upward so as 5 to project above the rail at the opposite end sufficiently to communicate motion to the short end of the pivoted actuating-levers m n n, extending at right angles from the levers ll. The levers Z tare bifurcated at their free ends,

0 or otherwise formed so as to connect with the short end of the actuatinglever m.

The chair k, Fig. 4, is formed in two parts, to fit under and hold the lever m by means of the holes h h and pivots h", Figs. 4 and 6, and connect with the rail, and is provided with beveled projections e e, to fit in notches e e to keep the edges evenly together, while a strap, ff, booked at each end, catches and engages with the tapering rib g {1, so that the latter can be driven up to tighten and hold the two parts of the chair together, the projections i serving to prevent anything coming between the said chair and the lever m;

It will be seen that the bars l l, which extend each way from the lever m alongside of the rail A, are both operated upon simultaneously by the wheels of the train of cars passing over the rail in either direction.

\Vhat I claim as myinvention, and desire to secure by Letters Patent, is-

1. The combination, with the rail A, of the two parallel reverse incline bars 1 l, pivoted to the chairs jj, their meeting ends extending above said rail, and each connecting, bymeans substantially as set forth, with the short end of the central actuating-lever, m, extending at right angles to the said bars and rail, substantially as and for the purpose set forth.

2. The combination, with railA, theinclined bars I I, and lever m, of the shoe or chair 70, formed in two parts, substantially as and for the purpose set forth.

In testimony whereofl have signed my name to this specification in the presence of two subscribing witnesses.

J. S. MCLEOD.

Witnesses J os. H. ADAMS, Enw. S. COBB. 

